package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.ReportService;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

/*
类简介：

功能：

时间：2020/4/11

*/
@RequestMapping("report")
@ResponseBody
@Controller
public class ReportController {

    @Reference
    private ReportService reportService;

    @RequestMapping("getMemberReport")
    public Result getMemberReport(){

        Calendar calendar = Calendar.getInstance();
        calendar.add(Calendar.MONTH,-12);

        ArrayList<String> months = new ArrayList<>();
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM");

        for (int i = 0; i < 10; i++) {
            calendar.add(Calendar.MONTH,1);
            months.add(simpleDateFormat.format(calendar.getTime()));
        }

        List<Integer> memberCount = reportService.getMemberCount(months);

        HashMap<String, Object> map = new HashMap<>();
        map.put("months",months);
        map.put("memberCount",memberCount);

        return new Result(true,"成功",map);

    }

    @RequestMapping("getSetmealReport")
    public Result getSetmealReport(){

        List<Map<String,Object>> setmealCount = reportService.getOrderReport();
        ArrayList<String> setmealNames = new ArrayList<>();
        for (Map<String, Object> map : setmealCount) {
            setmealNames.add(map.get("name").toString());
        }

        HashMap<String, Object> map = new HashMap<>();
        map.put("setmealNames",setmealNames);
        map.put("setmealCount",setmealCount);

        return new Result(true,"成功",map);

    }

    @RequestMapping("getBusinessReportData")
    public Result getBusinessReportData(){
        try {
            Map<String,Object> map = reportService.getBusinessReportData();
            return new Result(true,"成功",map);
        }catch (Exception e){
            return new Result(true,"失败");
        }

    }

    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response) {
        try {
            //远程调用报表服务获取报表数据
            Map<String, Object> result = reportService.getBusinessReportData();
            //取出返回结果数据，准备将报表数据写入到Excel文件中
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer)
                    result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");
            //获得Excel模板文件绝对路径
            String temlateRealPath = request.getSession().getServletContext().getRealPath("template") +
                            File.separator +
                            "report_template.xlsx";
            //读取模板文件创建Excel表格对象
            XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(new File(temlateRealPath)));

            XSSFSheet sheet = workbook.getSheetAt(0);

            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);//日期

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;
            for (Map map : hotSetmeal) {//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }

            //通过输出流进行文件下载
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");

            workbook.write(out);
            out.flush();
            out.close();
            workbook.close();

            return null;
        } catch (Exception e) {
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL, null);
        }
    }


    @RequestMapping("exportBusinessReport4PDF")
    public Result exportBusinessReport4PDF(HttpServletRequest request, HttpServletResponse response){
        try {
            Map<String, Object> result = reportService.getBusinessReportData();
            //取出返回结果数据，准备将报表数据写入到PDF文件中
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");
            //动态获取模板文件绝对磁盘路径
            String jrxmlPath = request.getSession().getServletContext().getRealPath("template") +
                    File.separator + "health_business3.jrxml";
            String jasperPath = request.getSession().getServletContext().getRealPath("template") +
                    File.separator + "health_business3.jasper";
            //编译模板
            JasperCompileManager.compileReportToFile(jrxmlPath, jasperPath);
            //填充数据---使用JavaBean数据源方式填充
            JasperPrint jasperPrint = JasperFillManager.fillReport(
                    jasperPath,result, new JRBeanCollectionDataSource(hotSetmeal));
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/pdf");
            response.setHeader("content-Disposition",
                    "attachment;filename=report.pdf");
            //输出文件
            JasperExportManager.exportReportToPdfStream(jasperPrint,out);
            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }

    }

}
